123350640437 has 2 divisors, whose sum is σ = 123350640438. Its totient is φ = 123350640436.

The previous prime is 123350640409. The next prime is 123350640443. The reversal of 123350640437 is 734046053321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119048461156 + 4302179281 = 345034^2 + 65591^2 .

It is a cyclic number.

It is not a de Polignac number, because 123350640437 - 2¹⁰ = 123350639413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123350640437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123350646437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61675320218 + 61675320219.

It is an arithmetic number, because the mean of its divisors is an integer number (61675320219).

Almost surely, 2^123350640437 is an apocalyptic number.

It is an amenable number.

123350640437 is a deficient number, since it is larger than the sum of its proper divisors (1).

123350640437 is an equidigital number, since it uses as much as digits as its factorization.

123350640437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 38.

Adding to 123350640437 its reverse (734046053321), we get a palindrome (857396693758).

The spelling of 123350640437 in words is "one hundred twenty-three billion, three hundred fifty million, six hundred forty thousand, four hundred thirty-seven".